Ore-separator.



N0. 832,972. PATENTED OCT. 9, 1906.

P. A. HARDWIGK.

ORE SEPARATOR. APPLICATION FILED MAY23.1905.

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PATENTED OCT. 9, 1906.

' P. A. HARDWIGK.

ORE SBPARATOR.

APPLICATION FILED MAY 23.1905.

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No. 832,972. PATENTED OCT. 9, 1906. P. A. HARDWIGK.

ORE SEPARATOR. APPLICATION FILED MAY23.1905.

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PATENTED OCT. 9, 1906.

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INVENTOR R72 fora fl hniwz'cfi ATTORNEYS P. A. HARDWIGK. ORB SEPARATOE. APPLIOATION FILED MAY 23. 1905 WITNESSES.-

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UNITED STATES PATENT OFFICE.

PENTON A. HARDWICK, OF

COLORADO CITY, COLORADO, ASSIGNOR TO THE ACME GOLD SAVER MANUFACTURING & MINING COMPANY, OF COLORADO SPRINGS, COLORADO, A CORPORATION OF COLORADO.

ORE-SEPARATOR.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed May 23, 1905. Serial No. 261,737.

T all whom, it may concern.

Beit known that I, PENTON A. HARDWIOK, a citizen of the United States, and a resident of Colorado City, in the county of El Paso and State of Colorado, have invented a new and Improved Ore-Separator, of which the following is a full, clear, and exact description.

My invention relates to apparatus for separating and securing the values of ore, and has for its principal object the provision of an effective portable apparatus of this character.

It consists in various features and combinations hereinafter described and more particularly claimed.

Reference is to be had to the accompanying drawings, which form a part of this specification, in which like reference characters indicate like parts in the several views.

Figure 1 shows one embodiment of my invention in end elevation. Fig. 2 is a top plan view of the apparatus. Fig. 3 is a central vertical longitudinal section taken on the line 3 3 of Fig. 1. Figs. 4 and 5 are transverse vertical sections taken on the lines 4 4 and 5 5, respectively, of Fig. 3; and Fig. 6 is a plan view of the hollow shaft.

A designates a frame formed of tubular members or sections of pipe and including uprights 10, upper and lower horizontal members 11 and 11, respectively, and braces 12, these various elements being connected by suitable fittings 12, including crosses, elbows, Ts, and unions, as may be necessary. A frame thus formed secures maximum strength with minimum weight and at the same time serves as a conductor for water delivered to the apparatus. To one of the horizontal members at either end of the frame may be connected a supply-hose 13 for the water to be used. In the side members 11 at their inner faces are perforations directed toward the screen structure, which will be later described, and in the uprights are valves 14 to permit the flow through the frame to be controlled. By their manipulation the liquid may be shut off from one or another of the longitudinal side members 11 or the volume regulated. The pipes 11 and 11 are shown as connected at thedischarge end of the machine by a vertical pipe 15, to which a hose may be attached for use in washing out the apparatus at the end of a run. In this pipe are valves 15 to control the flow therethrough.

Upon the end pipes 11 is rotatably mounted a tubular shaft 16, carrying a screen structure B. One end of this shaft is journaled in a hollow bearing 17, which connects it with the conduits through the frame, this bearing having a stuffing-box 18, which permits rotation of the shaft while preventing the escape of water. The opposite end of the shaft is supported by means of a solid journal portion 19. Along the shaft is a series of spirally-arranged jet-o enings 19 which direct the water delivere through the bearings 17 into the screen structure. Included in the shaft 16 are couplings 20 20, having threaded openings to receive tubular spokes 21. These spokes carry fittings 22, connected by intermediate nipples 23, and between the fittings extend parallel tubular bars or pipes 23*, having inner and outer screens 24 and 25, respectively. The inner of these screens is preferably of the greater strength and size of mesh, allowing it to efi ect a preliminary separation. Along each of the bars 23 are openings 26, which direct jets of water delivered to them through the spokes against the screens and serving, with the jets from the side members 11, to keep the mesh clean. From the ends of the inner bars 23, adjacent to the hollow bearing, are extensions 27, which are closed at their ends by caps 28. Upon these extensions is carried a cylindrical receiver or hopper 29, provided with an inwardly-extending flange 30. Into this hopper the material to be operated upon may be delivered preparatoryto its travel along the screens. Extending toward the center of the inner screen are sets of toothed retaining members arranged in successive series, there being here shown three in each of said series. The retaining members are alternately arranged or staggered with respect to those adjacent to them and are of such length circumferentially of the screen that they furnish resistance to the longitudinal movement of material at all points about it. This prevents the ore from passing too rapidly through the apparatus and also aids in the breaking up of softer portions of the material which have not been sufiiciently reduced. Ashereillustrated, the retaining members extend be tween adjacent screen-bars, they being secured thereto by U-bolts Fixed to the extension 19 of the shaft 16 is a sprocket-wheel 32, connected by a chain 33 with a sprocket-wheel 34, fast upon the shaft 35, which is rotatable in bearings carried at one extremity of the bar 36, extending across the top of the frame. The shaft 35 also has fixed to it a sprocket-wheel 37 connected by a chain 38 with a sprocket-wheel 39, secured to a shaft 40. This shaft also carries a pulley 42, from which a belt 43 passes over the pulley of a motor 44, carried by the bar 36 at its opposite end from the gears 34 and 37 and being conveniently of the hydraulic type. To the motor-casing leads a supply-pipe 45, connected with the frame of the machine, while from the casing is an outlet-pipe 46, which may communicate with the trough, thus enabling the water used for motive power to be also utilized with the material to furnish the pulp. The relative diameters of the various pulleys and sprocket-wheels are such that the speed of the motor will be reduced to give the desired rate of rotation to the screen.

Supported upon the side members 11 by means of projections or fingers 47 is a trough 48, which preferably conforms to the curvature of the outer screen and extends along the screen from a point below its feed end into proximity with the discharge end, though preferably stopping somewhat short thereof. This trough is lined with fibrous material 49, this being preferably of some such carpet as Brussels or of burlap and serving to retain the values between its fibers.

.Over the fibrous material is placed a layer of screen material 50, which acts both as a protective covering resisting the abrasion of the pulp flowing over itand also aids in producing a roughened or rifile surface, causing eddies to be formed, which tend to deposit the concentrates. The screen and fibrous material may be supported at their upper edges by a wire 51, while wires 52, extending about the trough and spaced by suitable distances, further assist in retaining them in ,place.

The trough is imperforate save for an opening 53 at its center at the discharge end, and below this o ening is a concentratingchute 54. This 0 ute may be of any length necessary to secure the proper amount of concentrating surface. and has extending along it rifiie devices, preferably formed .in sections. These sections may comprise side bars 55 55, connected at their ends by cross-bars 56, which are bent to conform to the trough. Supported upon the side and end bars is screen material 57, and resting upon this is a sheet of fibrous material. 58. Covering the fibrous material is a second layer of screen material 59.

The action of the fibrous material and the upper layer of screen material is similar to that just described in connection with the trough. The lower screen strengthens the structure and allows the sections to resist the wear and tear of handling and washing. Beyond the chute 54 and extending along the ends of the rotary screens is a chute to receive the coarser material, which is too large to be concentrated.

In using the apparatus it is conveyed to the deposit to be operated upon, its lightness greatly facilitating this. The water-supply is now connected to the frame and the valves regulated to secure the desired flow through the jet-openings. The material having, if necessary, been pulverized is delivered to the hopper of the inner screen. As the screen structure rotates it passes along said screen, within which it is deflected and retained by the toothed members and to some extent disintegrated. The finer portion falls through the screen 24 upon the screen 25,where it is again separated, only the finest portion, which is in such a state that it may be satisfactorily concentrated, falling into the trough. The greater portion passes on and tails over the screen to the chute 60, this leading it to any desired point, where it may accumulate as waste or may be further pulverized for retreatment. The finer particles,mixed with the water introduced through the frame and screen-pipes, flow over the riffle-surface within the trough, where a portion of the heavier material is caught by the fibers and by the wires of the screen. From the trough the pulp, still carrying some of the values, is received by the chute 54 and is subjectedto a similar treatment, these riffles retaining practically all the values. When a certain amount of the concentrates have accumulated in the trough and the chute, the apparatus may be shut down and a hose applied to the pipe 15, which when directed into the trough washes the concentrates into the chute. This having been done, the

riflile-sections are removed and washed to collect the values. Then upon returning the sections to the chute the operation may be repeated. 7

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. An ore-separator comprising a frame ICC IIS

municating with the tubular members, atubular perforated screen-frame carried by and communicating with the shaft, and a screen mounted upon the screen-frame.

3. An ore-separator comprising a frame consisting of tubular members provided with perforations and adapted to be connected with a water-supply, a hollow shaft journaled in the frame, and communicating with these tubular members, hollow spokes extending from the shaft, perforated pipes connecting the spokes, and a screen mounted upon the pipes.

4. An ore-separator comprising a frame consisting of tubular members provided with perforations and adapted to be connected with a water-supply, a hollow shaft ournaled in the frame and communicating with these tubular members, hollow spokes radiating from the shaft, pairs of separated pipes carried by the spokes and provided with perforations, and inner and outer screens mounted upon the pipes.

5. An ore-separator, comprising two concentric screens, longitudinal perforated pipes within each of the screens and adjacent to the inner face of the same, and longitudinal perforated pipes arranged outside of the outermost screen and adjacent thereto.

6. In an ore-separator, a frame having hollow perforated side members, a hollow perforated shaft mounted in the frame, hollow spokes carried by the shaft and communicating therewith, sets of spaced and perforated longitudinal pipes connecting each pair of spokes, the said frame members and the shaft being adapted to be connected with a water-supply and a screen outside of and adjacent to each set of pipes.

7. In an ore-separator, a frame having hollow perforated side members, a hollow perforated shaft, hollow spokes carried by the shaft and-communicating therewith, spaced fittings carried by the spokes one beyond the other, inner and outer sets of perforated pipes secured in the fittings of opposed spokes the side frame members and the shaft being adapted to be connected with a water-supply, and screens secured to the said fittings outside of and adjacent to the pipes.

8. An ore-separator, comprising a frame having hollow perforated side members, a hollow perforated shaft provided with hollow spokes connected together by sets of inner and outer perforated pipes, the side frame members and the shaft being adapted to be connected with a water-supply, a screen outside of and adjacent to each set of pipes, a trough below the outermost screen and having a riflie-surface, the trough having a perforation near one end, and a concentratingchute below the opening of said trough.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PENTON A. HARDWICK.

Witnesses:

WILLIAM E. WEEKs,

R. H. F. LEE. 

